3M MP8745 用户手册

© 3M 1999

3M

™

 Multimedia Projector MP8745

ENGLISH

23

Section 7: Troubleshooting

Power cannot be

• The Main power is not turned on.

• Turn the MAIN POWER switch on.

turned on.

• The power cord is disconnected.

• Insert the power cord into an AC socket.

• 60 seconds have not elapsed since

• Wait 60 seconds before turning on power.

the power was turned off.

No picture and sound.

• The setting of the input source is not

• Set the correct input using the input select button of

correct.

the projector or the remote control.

• RGB/Video/Audio wiring to projector is

• Connect the cable to correct input/output source.

not correct.

Sound is heard with no

• RGB/Video/Audio wiring to projector

• Connect the cable to correct input/output source.

picture.

 is not correct.

• The brightness is set fully to dark.

• Press the MENU button and increase BRIGHTNESS.

• Lens cap is on.

• Remove lens cap.

Picture is displayed with

• Audio wiring to projector is not correct.

• Connect the cable to correct input/output source.

no sound.

• The volume is set to minimum.

• Press the VOL button to increase Volume.

• The unit is muted.

• Press the MUTE button.

• PinP is on and audio is switched

• Press VOLUME and move DISC PAD to switch to

to VIDEO mode.

audio input.

Color is weak and tint is

• The color and tint have been adjusted

• Adjust the color and tint correctly.

incorrect.

incorrectly.

Picture is dark.

• The brightness and contrast has not

• Adjust the brightness and contrast correctly.

been adjusted correctly.

• The lamp needs to be replaced.

• Replace the lamp with a new one.

Picture is not clear

• Projector is out of focus.

• Adjust the focus and H PHASE.

LAMP indicator lights

• Lamp will not ignite.

• Turn off power and let cool for 20 minutes, then restart.

red.

• If problem persists call your dealer.

LAMP indicator blinks

• Air filter door on bottom of case

• Ensure air filter door is closed.

red.

is open.

TEMP indicator lights

• Temperature inside projector

• Clear blocked ventilation holes.

 red.

is too hot.

• Clean air filter.